Since topsoil dries out from the top, down, when the top six inches of soil are out of moisture the grower standard crop was without water, however, the treated plot still had 11.8 (17.8 – 6) inches of soil with moisture in it for the roots to extract. (As an aside, the top 6 inches of soil contain far fewer nutrients than the soil between 6-18 inches, so roots beyond six inches can access higher nutrient soil which leads to higher nutrient crops.)
មួយ ក្នុង ចំណោម លទ្ធផល ល្អ ប្រសើរ ជាង មុន របស់ យើង, Holden រ វ វ សាកល្បង ស្ព នៅ ក្នុង រដ្ឋ California. With only a 20% ការ កាត់ បន្ថយ នៅ ក្នុង ជី និង លើស ពី នេះ ទៀត ផលិតផល ដែល មាន មួយ SumaGrowt,m, ជម្រៅ penetrometer ើ ន ើ ង ពី 6 អុ ិ ន ឈ៍ ទៅ 17.8 អុ ិ ន ឈ៍.