Cultural Technology of Grain on Silt Arrested Land with High Yield in Hilly and Gully Region of North Shaanxi Province

ZHANG Ming; GAO Pengcheng; LIN Guanshi; CHANG Xiaoming; LI Feng; LIN Yanmei

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Cultural Technology of Grain on Silt Arrested Land with High Yield in Hilly and Gully Region of North Shaanxi Province

- Cultural Technology of Grain on Silt Arrested Land with High Yield in Hilly and Gully Region of North Shaanxi Province
- Bulletin of Soiland Water Conservation Vol. 20, Issue 5, Pages: 45-48(2001)
- 作者机构：
  
  西北农林科技大学黄土高原治理研究所西北农林科技大学黄土高原治理研究所, 陕西米脂,718100
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- Published：2001
- 稿件说明：
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ZHANG Ming, GAO Pengcheng, LIN Guanshi, et al. Cultural Technology of Grain on Silt Arrested Land with High Yield in Hilly and Gully Region of North Shaanxi Province[J]. Bulletin of Soiland Water Conservation, 2001, 20(5): 45-48.
DOI：

ZHANG Ming, GAO Pengcheng, LIN Guanshi, et al. Cultural Technology of Grain on Silt Arrested Land with High Yield in Hilly and Gully Region of North Shaanxi Province[J]. Bulletin of Soiland Water Conservation, 2001, 20(5): 45-48. DOI：

摘要

根据最优设计的原理

采用了组合设计的思想

接近于正交设计、旋转设计和饱和设计

故称为最优混合设计。1998年小区最高产量为12919.5kg·hm-2

1999年小区最高产量达到13815kg·hm-2

2000年小区产最高产量达15018.0kg·hm-2 。由电脑筛选出343个方案

其中

15000～17625kg·hm-2的最优组合方案是:施有机肥 60000kg·hm-2

追肥N素462～483kg·hm-2

播前浇底墒水600t·hm-2

补灌1377～1458t·hm-2

密度:马铃薯套种高粱

马铃薯72705～83415株·hm-2

高粱65205～75915株·hm-2。

Abstract

The way of trial plan is called "the best mixed plan"

for it contains the idea of combination plan and uses the fundamentals of the best plan

it is close to two kinds of plans. The highest output of silt arrested land plot 1998

1999 and 2000 reaches 12 919.5 kg·hm -2

13 815.0 kg·hm -2 and 15 018.0 kg·hm -2 respectively. There are 343 plans obtained through computer

the best combination plan with yield of 15 000～17 625 kg·hm -2 is to use 60 000 kg·hm -2 of organic manure

462～483 kg·hm -2 of N

to irrigate 600 t·hm -2 of water before seeding

1 377～1 458 t·hm -2 of water in crop growth

to maintain the density of potato and sorghum with 72 705～83 415 per hm 2 and 65 205～75 915 per hm 2 respectively.

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